The GI-15 hybrid reactive coverstock found on the Lock is designed for the most demanding patterns when the oil is just too much to handle.

We felt that the need to create a pearlized version that allows you to stay straighter longer without over-reacting when you donít want it to. When the lanes begin to break down, the next best step for you to stay ahead of the transition is to switch to a ball with similar overall motion but gets through the front part of the lane with ease.